Earl Tuathal of Tuadhmhumhain

Earl Tuathal of Tuadhmhumhain (801-861) was the Earl of Tuadhmhumhain from 821 to 861, succeeding Earl Artri of Tuadhmhumhain.

Biography
Tuathal was a member of the Eoganacht-Glendamnach family which ruled Tuadhmhumhain, and he was the Earl following the death of his father Earl Artri of Tuadhmhumhain in 821. He was the Earl for forty years, when he died of natural causes. His daughter Lasairfiona nic Tuathal became a princess of Ireland and a potential wife for King Aethelred of Wessex.